Loom



E. G. LOOMIS.

LOOM.

19%23619w APPLICAT ON FILED l-ULY 23.1921- 5 SHEEIS-SHEET 1.

E. G. LOOMIS.

LOOM.

APPLICATION FILED JULY 23. 192.

1 ,423,6 1 9. Pate t d July 25, 1922.

5 SHEETS-SHEET 2.

lllllllm 11 mum LZNVEgTDR BY I mionzvs Patented July 25, 1922.

5 SHEETS-SHEET 3.

E. G. LOOMIS. LOOM.

APPLICATION man JULY 23, 1921.

v 2 J v E. G. LOOIVHS.

LOOM.

APPLICATION man JULY 23,1921.

5 SHEETS- SHEET 4.

Patented July 25, 1922.

E. G. LOOMIS.

LOOM.

APPLICATION FILED JULY 23, 1921.

1,428,619. Patented Jul 25,1922.

5 SHEETS-SHEET 5.

, l VENTOR Wd 9% n ATTO NEYS E'VARTS G. LOOMIS, OF NEWARK, NEW JERSEY, ASSIGN'OR TO THE OKONITE COM- PANY, or PASSAIC, new JERSEY,

A CORPORATION OF NEW JERSEY.

Ill-00M.

Application filed July 23,

To all whom it may concern.-

Be it known that I, EvARTs G. LOOMIS, a citizen of the United States, and a resident of Newark, county of Essex, and State of New Jersey, have invented certain new and useful Improvements in Looms, of which the rics wherein novel shuttles are employed and 1 wherein the shuttles are so mounted as to be easily removed or placed in the machine without necessitating tearing down of the machine.

A further object of the invention is the provision of a new and novel manner of supporting and guiding the shuttles, groups of bearing rollers having been provided for this purpose, each group comprising a roller for taking the vertical thrust of the shuttle, a roller for taking the side thrust of the shuttle and a roller for taking the down ward thrust and the weight of the shuttle.

A further object of the invention is the provision of means in connection with the shuttles and the bobbins carried thereby,

whereby breaking of a warp thread or a bobbin thread, or exhausting the supply of either will automatically bring the loom to rest.

A further object of the invention is the provision of fingers for guiding the warp threads, these fingers being arranged so that the machine will automatically stop should a warp thread'break.

A still further'object ofETth'e invention is the provision of improved vertically movable warp guides or jacks arranged in sets, each set of which is removable independently of the other set. This, of course, is of great advantage in making repairs to the loom. The warp guides or jacks are themselves of an improved construction, enabling the jacks to be practically self-oiling.

A further object of the invention is the provision of improved mechanism for driving the drum over which the finished fabric Specification of Letters -Patent.

Patented July 25, 1922.

1921. Serial No.486,987.

is passed as it leaves the loom, this drive mechanism also being of such nature as to permit slipping of the drum and thus prevent breakage of parts, should the tension on the woven fabric exceed a certain predetermined value.

A further object of the invention is the provlsion of a one-piece cover plate for the loom provided with a cut-out portion for receiving the bracket which supports the nozzle through which the woven fabric leaves the loom. By removing the plate just mentioned access may be had to practically the entire working mechanism.

In the accompanying drawings wherein l have illustrated an embodiment of my ininvention,-

Fig. 1 shows my improved machine in plan and in part section;

Fig. 2 is a view taken substantially on the line 2-2 of Fig. 1;

Fig. 3 is a section substantially on the line 33 of Fig. 1;

Fig. 4: shows in sectional elevation the device for the drum which receives the woven material after the same comes from the loom nozzle, this view being taken substantially on the line 44 of Fig. 2;

Fig. 5 is a view of the fingers for receiving the warp threads showing the manner in which these fingers are attached to the machine; 1

Fig. 6 is a view of a portion of the finger mechanism of Fig. 5 showing the parts in a different position;

Fig. 7 is a sectional elevation of the driving mechanism for the shuttles and the bearings therefor;

Fig. 8 is an enlarged view of one of the shuttles employed in my machine;

Fig. 9 is a plan view of one of these shuttles taken at the line 99 of Fig. 10,

' looking in the direction of the arrows; and

Fig. 10 is a side view of the shuttle.

Referring the to drawings in detail,-1 designates the base of the machine which is provided at 2 with bearings for verticallyextending hollow shafts 4 carrying gears by which the shuttle mechanism to be described later is driven. Secured to the base 1 by bolts 6 is a sleeve 7 on which the drum 8 is mounted for rotation, this drum being provided with bevelled gear teeth 9 meshing with a bevelled gear 10 mounted upon a shaft 11, this shaft carrying at its outer end a gears driving drive ulley 12 which is adapted to be driven an electric motor 13 for example. The shaft Ill-is mounted in bearings 14 and 15 in the base of the machine.

A shaft 16 is mounted for rotatlon n the base ofthe machine and is adapted to be operated by a hand wheel 17, this shaft being provided at itsinner end with the bevelled gear 18 also meshing .with thegear teeth 9 already referred to. This hand-0perated shaft is provided for the purpose of manually rotating the drum 8 when desired and is equipped with a clutch 16' whereby in the normal operation of the loom the shaft 16 and hand. wheel 17 may remain stationary. The vertically extending hollow shafts 4 already referred to carry a gear 19 adjacent their lower end, said gears meshing with teeth 20on the drum 8- so that when the latter is rotated motion will be imparted to these shafts. The upper end of each of the shafts 4 is mounted in bearings 21 provided in blocks 22 at the top of the machine. A gear 23 is secured to the upper end of each shaft 4 just below thebearings 21, these the shuttles as will be pointed out presently.

The periphery of thedrum 8 is provided with cam plates 24 and 25, these plates being spaced from each other so as to provide tracks 26 for reciprocating a series of jacks 27. These jacks are arranged in sets-six jacks to a setaround the periphery of the drum 8. Each set of jacks comprises. six metal and wood members, the jacks being best illustrated in Fig. 5, the wooden part of the jack being designated 28 and the metal part 29. The two parts of the jacks are fastened to each other by rivets 30 or any other suitable means. Each jack is provided with a roller. 31 which is adapted to ride in one or the other of the tracks 26.

As will be seen from Fig. 2 for example, the rollers are attached to these jacks at the center and ends alternately, that is to say one jack will have its roller at the center thereof, the next jack at the lower end, the next at the center and so on. This causes three jacks of each set to be moved simultaneously upwardly for example, while the remaining three jacks of the set will be moved downwardly. Each set of jacks is mounted in a block or casting 32 shown in plan in Fig. 1, this block belng secured to the base of the machine by bolts 33. This block is arc-shaped at its inner face so that the twelve sets of blocks when in position constitute or form a 'circle' and this arcshaped face of each block is slotted so as to permit of the jacks being reciprocated Vertically. By providing these blocks it will be seen that I have a plurality of sets of jacks which may be removed from the 100m independently of each other so that in case it be desired to make repairs to the ing down the entire loom.

As I'have heretofore mentioned, the upper part of my improved loom is provided with a series of blocks 22. These blocks are supported by a ring 34 resting upon the standards l and secured to the base 7 by means of bolts 5. The blocks 22 of which there are twelve in the present machine, are provided for the purpose of affording bearings for the vertically-extending shafts 4 alrea y referred to and also for supporting the sets of upper bearing rollers 35 which-are provided for the purpose of taking the vertical thrust of the shuttles with which the loom is provided.

It will be seen that by removing the blocks 22 the rollers 35 may be lifted out also and that the shafts 4 with the gears carried thereby may likewise be lifted out.

The shuttles employed in my improved loom-are illustrated in detail in Figs. 8, 9'

and 10 and will now be described.

Each shuttle comprises an arc-shaped channel member 43 provided on its periphcry with gear teeth 44 adapted to mesh with the gears 23 carried by the vertically extending shafts 4. A spider 37 the hub 36 of which is secured to the sleeve 7 already referred to carries blocks 39 to each of which are attached rollers 40 and 42. The rollers 40 are rotatable in a vertical plane on a stud 40 while the rollers 42 are rotatable in a horizontal plane on the stud 41. The

rollers 35 are rotatable on a stud 35 in the block 22. As will be clearly seen from Figs. 3 and 7, the rollers 35 bear against the upper face of the channel member 43, the rollers 40 on theunder side of the flange 44, while the roller 42 which takes the side thrust of the shuttle is between the flanges 44 and 45 of the channel member. Carried by the member 43 and secured to same as by screws 47 is a frame 48, this frame being cut out as indicated at 49 so as to accommodate a bobbin 50. The bobbin is mounted in split bearings 51 and v.52 the upper half of which is adapted to be raised as indicated by the dottedlines in Fig.10 so as to permit of the bobbin being lifted out of its bearings. The shuttle I is provided with bowed guides'53 and. 54 which are adapted to separate the warp threads in the operation of the loom. The front end of the frame 48-is provided with tension lugs 55 for controlling the tension of the bobbin thread 56.

Pivoted to the frame 48 in front of the .bobbin 50' is a tension device or lever 57 under which the bobbin thread passes. This tension lever is held down by a spring 58 so as to maintain the bobbin thread under proper tension. I also provide a brake for each bobbin which comprises a springstub shaft 91 carries at its inner end a gear 92 meshing. with gear teeth 93 on the drum 81. An overload slip clutch is provided be tween the gear 92 and the shaft 87 compris ing spring-pressed pins 94 cooperating with depressions95 in the shaft so that when the tension on the woven material exceeds a predetermined value the gear train just detral point. An inspection of F igs. 1, 5 and 7 for example will show that I have provided a wick 97 in the ring 34; oil passes from this wick down through felt 98 to the shafts 4 to lubricate the lower bearings therefor and by way of passages 99 (or oil ducts) to the bearing rollers 35, from thence through the top of the channel 43 to the rollers 42 and from thence to the rollers 40. The oil may then pass by way of the pipe 100 to the slot in the jack supporting blocks 32.

It will be seen from the foregoing description that I have provided a loom for weaving tubular fabric wherein the jacks or warp thread guides are mounted in sets independently removable from the loom so that a set of jacks may be taken out without necessitatin tearing down the machine.

t will be seen furthermore that I have provided improved shuttle mechanism and an improved means for guiding the same in the loom, the shuttles being so supported and so mounted in the machine that any one shuttle desired may be removed easily and without disturbing the others.

It will be seen furthermore that I have provided mechanism wherein, should a bobbin thread break or should the supply of thread upon a bobbin become exhausted, the loom will be automatically brought to rest.

It will also be apparent that I have provided tension fingers adapted to receive the warp threads which fingers'are so arranged as to be capable of controlling the circuit to the drive motor for the loom so that in the event of breaking of a warp thread for ex ample, the loom will automatically come to rest.

It will be apparent also that any number of fingers desired may be locked out of operative position without interfering with the operation of the loom in any manner.

It will be apparent also from the foregoing that improved means have been provided for driving the drum 81 whereby although the drum is driven from the main drive shaft of the loom a sllppage may take place in case of too much tension upon the woven fabric and thus prevent overstrain or breakage of parts.

What is claimed as new is:

1. In a loom for weaving tubular fabric, tension fingers cooperating with the warp threads, a and locking mechanism for looking a finger out of operative position.

2. In a loom for weaving tubular fabric, tension fingers for supporting the warp threads, a pivoted bearing for receiving and sustaining each of said fingers, a spring tending to rock said bearings about their pivots, a locking lever pivotallymounted upon each of said pivoted bearings and cooperating with said' bearings and With a part of the main portion of the loom to look any one of said bearings desired against .movement by said spring.

3. In a loom for weaving tubular fabric, a base member, vertically extending jacksupporting blocks carried by said base member and secured thereto, each of said blocks being independently removable from its support.

4. In a loom for weaving tubular fabric, a base member, vertically extending blocks carried by said base member and secured pivoted bearing for each finger,

thereto, a plurality of jacks mounted for reciprocation in said blocks, each of said blocks and the jacks mounted therein being removable from the base member independently of the other blocks and jacks.

5. In a loom for weaving tubular fabric, a base member, vertically extending blocks supported by said base member and independently removable therefrom, jacks slidably mounted in said blocks, a j ack-controlling member carried by each jack and a r0- tatable drum having tracks for said jackcont-rolling members whereby as the drum is rotated the jacks will be reciprocated.

6. In a loom for weaving tubular fabric, a base member, jack-carrying members supported by said base member and independently removable therefrom, combined wood and metal jacks slidably mounted in said blocks and a rotatable drum cooperating with said jacks to cause. them to be reciprocated in said blocks.

7. In combination, a loom for weaving circular fabric, weaving tube, a bracket supported by said loom for supporting said weaving tube, and a one-piece cover for the 100111 provided with a cut-out portion for accommodating said bracket and weaving tube.

8. In a loom for weaving tubular fabric, the combination of a shuttle and groups of bearing rollers for the shuttle, each group comprising a pair of rollers rotating in a vertical plane and an intermediate 'roller rotating in a horzontal plane.

9. In a loom for weaving tubular fabric,

.iaaaeie pressed, pivot-3d member 57 shown in Figs. 8, 9 and 10, this member being actuated y a spring 58. Inasmuch as the member 57' extends longitudinally of the bobbin 50 it will be seen that it functions as a brake at all times and prevents too rapid unwinding of the thread from the bobbin.

In addition to these tension devices the frame 48 is provided with a spring-actuated plu 59 adapted to co-operate with a control ing device 60. This controlling device is provided for the purpose of automatically opening the circuit of the drive motor 13 should the bobbin thread break or should the supply of thread on a bobbin become exhausted.

It will be seen from Fig. 8 that the controlling member 60 passes through the channel member 43 and has its ends ofiset, that is to say, one end is so bent as to be in front of the bobbin while the other end is bent so as to conform more or less with the periphery of the frame 43. The end in front of the bobbin and which is designated 61 is adapted to be actuated by this springpressed member 59, already referred to, and from Fig. 8 it will be seen that when the shuttle is threaded the bobbin thread 56 passes over the end 61 of the control member 60. The other end, that is to say the end 62 of the control member 60 is adapted to cooperate with insulated contact rings 63 which are provided on each of blocks 22 and which contact rings are electrically connected to insulated conductor 63 extending around the inner periphery of the machine so that no matter what the position of the shuttle may be with respect to the loom when the loom is in operation, and no matter which bobbin thread is broken, the controlling member 60 will almost immediately contact with a ring 63. When the controlling member 60 comes in contact with a contact ring 63, due to breaking of the bobbin thread or due to the supply of thread on a bobbin becoming exhausted, the circuit will be closed to an electromagnet 64 which is operatively connected to a battery 65 for example. The closing of the circuit of the electromagnet 64 will open the circuit to the motor 13 at the contacts 66 and the loom will come to rest.

The shuttles are easily removed from the loom by the removal of the blocks 22 heretofore referred to, and which blocks carry the bearing rollers 35 so that should it be desired to remove a shuttle for any purpose it is merely necessary to lift out two of the blocks 22 when the shuttle itself can be lifted out, leaving the bearing rollers 40 and 42 in the machine. Of course at the same time the shafts 4 and the gears carried thereby can-be lifted out also if desired.

The ring 34 heretofore referred to which rests upon the standards 1 is provided with a series of tension fingers 67, these fingers being arranged around the periphery of the ring 34 and receiving the warp threads 68 which pass through the jacks 27, holes 69 bein provided in the jacks for the purpose. here are twelve sets of these fingers, each set comprising six fingers. In other words, there is a set of fingers for each set of jacks. Each finger is supported in a pivot bearing 70 pivoted at 71 in the ring 34, the bearing being maintained in the position shown in Fig. 5 for example, by a spring 72. Pivoted to the bearing 70 1s a lever 73 provided with a locking arrangement 74 which is adapted to be moved from the position shown in Fig. 5 to the position shown in Fig. 6 when it is desired to maintain a finger 67 out of operative position. This arrangement is provided so that the number of fingers employed may be varied as desired, depending upon the number of warp threads 68 68 it may be desired to use. I In connection with the tension fingers 67 I have provided a control for the electric driving motor 13 whereby, should a thread 68 break for example, the finger 67 will be actuated to bring the upper end thereof into engagement with a contact strip 75 to close a circuit to the electromagnet 64 already referred to, to open the circuit of the motor 13 in the manner heretofore described in connection with the shuttle mechanism. The contact strip 75 is similar to the conductor 63 in that it extends continuously around the periphery of the loom so as to always be in position to'be engaged by a finger 67, no matter at what point the warp thread may be broken.

The top of the machine is provided with a one-piece cover plate 76 which rests upon the upper face of the ring 34, this plate being provided with a cut-out portion 77 to accommodate a bracket 78 which supports the weaving tube 79 through which the woven material is discharged from the loom. The bracket 78 is supported by a housing 80 for a gear train shown in Figs. 2 and 4 which gear train is adapted to drive a drum 81' over which the woven material passes in being discharged from the loom.

The housing 80 is supported on the base of the machine is indicated at 81 (see Fig. 2) and extending vertically in this housing is a shaft 82 carrying at its lower end a bevelled gear 83 meshing with a bevelled gear 84 upon the drive shaft 11. The upper end of the shaft 82 carries a worm 85 meshing with a Worm wheel 86 mounted upon a stub shaft 87 passing through the falls of the housing 80. The shaft 87 carries at its outer end a gear 88 adapted to mesh with an intermediate gear 89 which in turn meshes with a gear 90 carried on the end of a stub shaft 91. The

meagre the combination of a shuttle comprising a channel member, bearing rollers for said shuttle, one being disposed so as to contact with the upper face of said channel memher. one being disposed between the flanges of said channel member and theother contacting with the lower face of the inner flange.

10. In a loom for weaving tubular fabric, the combination bf a shuttle comprising a channel member. means for driving the shuttie in a circular path, a channel member forminga part of said shuttle, and bearing rollers for sustaining said shuttle, two of said rollers rotating in a vertical plane, one being located above and the other below said channel member, and a third bearing roller rotatable in a horizontal plane and located between the flanges of said channel member,

11. In a loom for weaving tubular fabric, the combination of a shuttle comprising a channel member, means for driving said shuttle, and bearing rollers by wh ch said shuttle is guided, one of said rollers rotating in a horizontal plane between the flanges of said channel member.

12. In a loom of the class described, the combination of a plurality of shuttles, means for movin said shuttles in a circular path, each shutt e comprising a channel member, and groups of bearing rollers disposed in a circle, two rollers of each group being rotatable in a vertical plane and engaged by the upper and lower part of the said channel members, and a third roller of each group being rotatable in a horizontal plane and adapted to engage the channel members between the flanges thereof.

13. In a loom of the class described, a shuttle race comp-rising groups of bearing rollers arranged in a clrcle, the upper and lower rollers of each group being offset with respect to each other and rotatable in a vertical plane, the intermediate roller being rotatable in a horizontal plane.

14. In a loom of the class described, a shuttle race comprising groups of bearing rollers fixed as to bodily movement and disposed so as to support a shuttle for movement in a circular path, the upper and lower rollers of each group being rotatable and so disposed as to take the vertical thrust of a shuttle, the intermediate roller of each group being rotatable and disposed so as to take the side thrust of a shuttle.

15. In a circular loom the combination of a plurality of shuttles, groups of bearing rollers for the shuttles and independently removable blocks carrying the bearing roller of each group of bearing rollers.

16. In a circular loom the combination of a plurality of shuttles, sets of bearing rollers for the shuttles, gears for driving the shuttles, shafts carryin said gears and independently removable %locks for carrying a roller of each set of bearing rollers and for holding said gear-carrying shafts in place in the machine.

17. In a circular loom the combination of a plurality of shuttles, groups of bearing rollers for said shuttles, said rollers being independently removable, shafts carrying gears for driving the shuttles, said shafts being independently removable.

18. In a circular loom the combination ofa plurality of shuttles, groups of bearing rollers for said shuttles and independentl removable blocks carrying a roller of eac group, said blocks when removed permitting removal of the shuttles from the loom.

19. In a circular loom the combination of a plurality of shuttles, groups of bearing rollers constituting a track for said shuttles, independently removable blocks carrying a roller of each grou and a spider carrying the other rollers of each group.

20. In a circular loom the combination of a plurality of shuttles, groups of bearing rollers constituting a track for said shuttles, independently removable blocks carryin a roller of each group and a spider carrying the other rollers of each group and taking the downward thrust and Weight of said shuttles.

21. In a circular loo-m the combination of a plurality of shuttles each shuttle comprising a channel member, groups of bearing rollers, constituting a track for said shuttles, independently removable blockscarrying a roller of each group, said roller taking the vertical thrust of said shuttles and a spider for supporting the remaining rollers of each group and for taking the downward and side thrust of said shuttles.

22. In a circular loom, a shuttle race comprising groups of bearing rollers arranged in a circle, the upper and lower rollers of each group being offset with respect to each other and rotatable in a vertical plane, the intermediate roller of each group being rotatable in a horizontal plane.

23. In a circular loom, a shuttle race comprising oups of bearing rollers arranged in a circ e, the upper and lower rollers of each group being offset with respect to each other and rotatable in a vertical plane, the

intermediate roller of each group being rotatable in a horizontal plane, the upper bearing rollers being independently removable from the loom.

24:. In a loom of the class described, a shuttle race comprising groups of bearing rollers arranged in a circle, the upper rollers of each group being rotatable in a vertical plane and independently removable, the lower and intermediate rollers of each grombeing rotatable in a vertical and horizont plane respectively and removable as a unit.

25. .In a circular loom, the combination of sets of jacks, a rotatable drum provided with tracks for causing reciprocation of said jacks and means for sustaining said jacks, said sustaining means for the jacks being independently removable so that each set of acks may be removed from the loom independently of the other sets.

26. In a circular loom, the combination of a lurality of jacks arranged in sets, a rotata le drum provided with a track cooperating with said jacks to cause the latter to be reciprocated, and blocks for receiving said jacks and in which blocks the jacks are reciprocated, said blocks being independently removable whereby each block and the set of jacks carried thereby may be removed from the loom independently of the other blocks and jacks.

27. In a circular loom, the combination of a rotatable drum, a support therefor, a fixed spider carried b said support, a plurality of shuttles, bearing rollers for said shuttles for taking the side and downward thrust of said shuttles and blocks secured to said 5 ider and carrying said bearing rollers, said b ocks and the earin rollers carried thereby being independently removable from the spider.

28. In a circular loom the combination of a rotatable drum provided with gear teeth, a vertically extending shaft, a gear carried thereby meshing with the gear teeth of said drum, a shuttle provided with gear teeth, a gear carried by said shaft and meshing with the ear teeth of said shuttle, bearing rollers or taking the vertical thrust of said shuttle and a block for each of said rollers,

said blocks being independently removable and constituting a bearing for one end of said shaft.

This spmification signed this 21st day of July, 1921.

EVARTS G. LOOMIS. 

